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kstn
Asked: 2021-06-28 02:54:51 +0800 CST

Can't mount ext4 partition via SATA to USB cable

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I'm stuck mounting an SSD, which is pre-formatted as ext4, via SATA to USB cable. However it gives the error:

mount: wrong fs type, bad option, bad superblock on /dev/sdc,
   missing codepage or helper program, or other error
   In some cases useful info is found in syslog - try
   dmesg | tail  or so

This problem does not happen when plugging the SSD directly to the drive bay of the laptop. The problem is also not the cable, because it can mount a HDD formatted as FAT32.

mount

2 Answers

  1. It seems to me that you're attempting to mount the device and not the right partition.

    Please update your question as to see the mount command you are executing.

    Make sure you don't have an USB memory stick, that is taking /dev/sdc

    Execute this command to see all the partitions and paste the output:

    cat /proc/partitions

    Assuming /dev/sdc is the right one, print the partition table to make sure which one is the right one to mount:

    For example:

    carles@fast:~$ sudo fdisk /dev/sde

Welcome to fdisk (util-linux 2.34).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): p
Disk /dev/sde: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 860 
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xee845f97

Device     Boot Start        End    Sectors   Size Id Type
/dev/sde1        2048 1953525167 1953523120 931.5G 83 Linux

Command (m for help):

    Cheers

    • 0

  2. You don't mount "/dev/sdc", that's the disk. The partition should be "/dev/sdc1" or some other number.

    regards.

    • 0